In real life, no technology works perfectly all the time.

• Sometimes, your mobile apps freeze.

• Sometimes, your Wi-Fi stops working.

• Similarly, IoT systems can also fail due to:
  • Broken wiring

  • Internet issues

  • Wrong programming

  • Device not powered

Engineers call this process of finding and fixing errors troubleshooting.

Learning how to debug IoT systems is just as important as building them. Good engineers don’t get upset when things fail—they treat every problem as a clue.